Brianna paid $13.77 for a new cd. the price includes a 6% sales tax. how much was the cd before the tax?

The answer is 12.99

12.99 x 0.06 = 13.7694 or 13.77

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4